Systems Administrator

Perfict; San Francisco (CA); On-site; USD 110,000 - 140,000; Full time

Job summary

Perfict in San Francisco is seeking an experienced voice engineer to administer Cisco Webex Calling and coordinate with network teams for reliable collaboration services across retail and office locations.

You will configure IP phones, manage routing and voicemail, and troubleshoot complex voice and connectivity issues while collaborating with vendors and carriers to ensure smooth deployments.

Qualifications

• Experience supporting enterprise voice or collaboration platforms.
• Hands-on administering Cisco Webex Calling.
• Understanding of SIP, call routing, and PSTN services.
• Foundational networking knowledge including TCP/IP, VLANs, QoS, DNS, and DHCP.
• Strong troubleshooting and problem-solving skills.
• Experience working with vendors, carriers, and cross-functional teams.
• Strong documentation and communication skills.
• Bachelor's degree or equivalent experience.
• Typically 2-5 years of experience supporting enterprise voice, telecom, or collaboration platforms.
• Exposure to Microsoft Teams Phone, Avaya, or contact center platforms is a plus.
• Cisco CCNA, Webex, or related certifications preferred.

Responsibilities

• Administer Cisco Webex Calling across the organization.
• Configure, deploy, and maintain IP phones and voice devices.
• Manage call routing, auto attendants, hunt groups, and voicemail services.
• Support store openings, relocations, remodels, and voice deployments.
• Troubleshoot voice, device, and connectivity issues.
• Partner with network teams to support voice VLANs, QoS, and connectivity requirements.
• Coordinate with carriers and vendors on provisioning, number porting, and issue resolution.
• Assist with voice platform upgrades, migrations, and enhancement projects.
• Maintain documentation, runbooks, and operational procedures.
• Participate in incident response, escalation activities, and on-call rotations.

Skills

Enterprise voice support

VoIP concepts

Troubleshooting

Documentation

Vendor coordination

Communication skills

Networking fundamentals

Education

Bachelor's degree or equivalent experience

Tools

Cisco Webex Calling

Webex Control Hub

CCNA / Cisco certifications

Job description

Long Term Contract

• Administer Cisco Webex Calling through Webex Control Hub.
• Configure, deploy, and maintain IP phones and voice devices.
• Manage call routing, auto attendants, hunt groups, and voicemail services.
• Support store openings, relocations, remodels, and voice deployments.
• Troubleshoot voice, device, and connectivity issues.
• Partner with network teams to support voice VLANs, QoS, and connectivity requirements.
• Coordinate with carriers and vendors on provisioning, number porting, and issue resolution.
• Assist with voice platform upgrades, migrations, and enhancement projects.
• Maintain documentation, runbooks, and operational procedures.
• Participate in incident response, escalation activities, and on-call rotations.

Must Have

• Experience supporting enterprise voice or collaboration platforms.
• Hands-on experience administering Cisco Webex Calling.
• Understanding of VoIP concepts including SIP, call routing, and PSTN services.
• Foundational networking knowledge including TCP/IP, VLANs, QoS, DNS, and DHCP.
• Strong troubleshooting and problem-solving skills.
• Experience working with vendors, carriers, and cross-functional teams.
• Strong documentation and communication skills
• Bachelor's degree or equivalent experience.
• Typically 2-5 years of experience supporting enterprise voice, telecom, or collaboration platforms.
• Experience administering Cisco Webex Calling and Webex Control Hub.
• Experience supporting IP telephony and cloud calling platforms.
• Knowledge of SIP, VoIP, voicemail, and PSTN services.
• Working knowledge of TCP/IP, VLANs, QoS, DNS, and DHCP.
• Experience supporting retail or distributed environments preferred.
• Exposure to Microsoft Teams Phone, Avaya, or contact center platforms is a plus.
• Cisco CCNA, Webex, or related certifications preferred.